Spherical Roller Bearings SKF 22209 EK

The SKF 22209 EK self-aligning roller bearing accommodates high radial loads with a 45 mm bore and automatically compensates for misalignment during operation.

The SKF 22209 EK double-row self-aligning roller bearing accommodates high radial forces and automatically compensates for angular misalignment between the inner and outer rings. As an open roller bearing made from 100Cr6 bearing steel, the design covers a temperature range from -30 to +200 degrees Celsius. A sheet steel cage guides the barrel rollers precisely along the raceways. The Explorer version combines standard dimensional accuracy (PN) with the increased running accuracy of tolerance class P5.

What loads and misalignments does the 22209 EK spherical roller bearing compensate for?

The 22209 EK self-aligning roller bearing is designed for bearing arrangements subject to predominantly radial loads and shaft deflection. Thanks to the shared hollow-spherical outer ring raceway, the roller set continuously adjusts to angular misalignment without generating additional edge pressures. The lubrication groove integrated into the outer ring, with radial lubrication holes, directs the lubricant directly into the working area of the two rows of rollers.

What are the advantages of the tapered bore of the 22209 EK?

The tapered bore with a standard taper ratio of 1:12 allows for mounting on tapered shaft seats or, using a shrink sleeve, on cylindrical shafts. When the inner ring is driven on axially, it expands in a controlled manner, allowing the remaining radial bearing clearance to be precisely adjusted. As this is an open bearing, sealing is provided by the surrounding bearing housing, supplemented by application-specific grease or oil lubrication.